Removal of phosphate in secondary effluent from municipal wastewater treatment plant by iron and aluminum electrocoagulation: Efficiency and mechanism
文献类型：期刊论文
| 作者 | Yang, Yahong; Li, Yuwei; Mao, Ran ; Shi, Yong; Lin, Song; Qiao, Meng; Zhao, Xu
|
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 286期号:0页码:120439 |
| 关键词 | PHOSPHORUS REMOVAL GREEN RUST SURFACE FE COAGULATION OXIDATION KINETICS ACID STEP PH |
| ISSN号 | 1383-5866 |
| 英文摘要 | Domestic wastewater quality conditions are complex, which will affect the types of flocs in Fe-electrocoagulation (EC). However, the influence of different types of flocs has not been considered for the removal of phosphate in real wastewater. Herein, the removal of phosphate in real domestic wastewater secondary effluent was investigated during Fe-EC process under low and high dissolved oxygen (DO) concentrations. The removal of phosphate was also investigated during Al-EC process for comparison. The results showed that phosphate (1.3 mg/L) could be efficiently removed with an efficiency of 98% +/- 2% both during Fe-EC process with low and high DO concentration, as well as during Al-EC process, with a slight lower removal rate during Al-EC (in 5 min) compared with Fe-EC (in 2 min), at 10 mA/cm2. The flocs composition was mainly green rust during Fe-EC with low DO, amorphous trivalent iron oxide/hydroxide during Fe-EC with high DO, and amorphous alum hydroxide during Al-EC. The removal mechanism was also deduced that the removal of phosphate by Fe-EC with high DO and Al-EC was mainly by coagulation, while by Fe-EC with low DO concentration was mainly by ion-exchange adsorption. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47896]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 通讯作者 | Qiao, Meng |
| 作者单位 | 1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China 2.Guizhou Water Conservancy & Hydropower Engn Consu, Guiyang 550002, Peoples R China 3.Chinese Acad Sci, Key Lab Drinking Water Sci & Technol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 4.Guizhou Water Serv Co LTD, R&D Ctr, Guiyang 550002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yahong,Li, Yuwei,Mao, Ran,et al. Removal of phosphate in secondary effluent from municipal wastewater treatment plant by iron and aluminum electrocoagulation: Efficiency and mechanism[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,286(0):120439. |
| APA | Yang, Yahong.,Li, Yuwei.,Mao, Ran.,Shi, Yong.,Lin, Song.,...&Zhao, Xu.(2022).Removal of phosphate in secondary effluent from municipal wastewater treatment plant by iron and aluminum electrocoagulation: Efficiency and mechanism.SEPARATION AND PURIFICATION TECHNOLOGY,286(0),120439. |
| MLA | Yang, Yahong,et al."Removal of phosphate in secondary effluent from municipal wastewater treatment plant by iron and aluminum electrocoagulation: Efficiency and mechanism".SEPARATION AND PURIFICATION TECHNOLOGY 286.0(2022):120439. |
入库方式： OAI收割
来源：生态环境研究中心
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